alt Hacker NewsMe and some friends have each been hosting vaultwarden casually for years now. What problem do you see? I mean if the Server goes down and gets completely corrupted, worst case, all my devices still have the version of the vault they recently used. Technically every device has it's own backup of the vault.
If I stay offline for more than 30 days, can I still access my local passwords? Honest question, because if that's the case it's nice, but I think you'd need to somehow authenticate before accessing your local vault.